In beans, the black color of the seed coat dominates over the white. Determine the probability of the appearance

In beans, the black color of the seed coat dominates over the white. Determine the probability of the appearance of seeds of different colors when crossing:
1) Aa x Aa; 2) AA x aa; 3) aa x AA; 4) aa x Aa.

1) 75% are black; 25% are white.
2) 50% – black; 50% are white.
3) 100% – black.
4) 50% – black; 50% are white.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.